McLuhan, Marshall,  1911- <br/><br/>
Understanding media :  the extensions of man / 
Marshall McLuhan. 
 - London :  Routledge & Kegan Paul,  c1964. 
 - vii, 359 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication.<br/>Mass media.<br/>Technology and civilization.